FREE SHIPPING anywhere in the US! - Aircomfort mesh back system allows hot air to dissipate and cool air to circulate - Hydration compatible - Expandable design allows you to pack more gear and essentials - Inner compartment for valuables - Mesh inner compartment - Organizer pocket - Rear light loop - Mesh hip fins - Sunglasses holder - Reflective detail for visibility in low light - Outer pockets - Made in Viet Nam